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Small Wind Turbine Independent Testing Videos (Text Versions)

This page provides the text versions for the Small Wind Turbine Independent Testing videos.

Abundant Renewable Energy ARE 442

This is the text version for the Abundant Renewable Energy ARE 442 video.

The 22-second video was shot at the National Renewable Energy Laboratory's National Wind Technology Center on October 16, 2008. The video shows the ARE 442 wind turbine's blades spinning in the wind. The ARE is a three-bladed upwind, free yaw, furling wind turbine with a rated power of 10 kW. It is installed on a freestanding 100-ft lattice tower. In the background and to the right, you can see its meteorological tower.

Entegrity EW50

This is the text version for the Entegrity EW50 video.

The 45-second video was shot at the National Renewable Energy Laboratory's National Wind Technology Center on April 7, 2009. The video shows the Entegrity EW50 wind turbine in the foreground with its blades spinning and the front range of the Rocky Mountains in the background. The wind is blowing from the mountains. The EW50 is a three-bladed, free-yawing, downwind turbine. The turbine operates at a constant speed of 65 rpm, and it begins producing its rated power of 50 kW around 14 m/s, at the National Wind Technology Center's air density (average of 1.0kg/m^3). The EW50 has tip-brakes, which are used to reduce the rotational speed when the turbine is stopping. The monopole tower is 31-m (100-feet) tall, and the blade diameter is 15 meters. In the background and to the right is the meteorological tower.

Gaia-Wind 11 kW

This is the text version for the Gaia-Wind 11 kW video.

The 21-second video was shot at the National Renewable Energy Laboratory's National Wind Technology Center on October 16, 2008. The video shows the Gaia-Wind 11 kW wind turbine's blades spinning in the wind with the mountains in the background. The Gaia-Wind 11 kW is a two-bladed, downwind turbine. The wind in this video is blowing from the general direction of the mountains. The turbine operates at a constant speed of 61 rpm and begins producing its rated power of 11 kW at approximately 9.5 m/s. The tower has a built-in ladder (right) and a working basket (left near the nacelle) for maintenance or inspections in the nacelle.

Mariah Power Windspire

This is the text version for the Mariah Power Windspire video.

The 23-second video was shot at the National Renewable Energy Laboratory's National Wind Technology Center on October 16, 2008. The video shows the Mariah Power Windspire wind turbine spinning in the wind with the mountains in the background. The Mariah Windspire is a three-bladed, vertical-axis turbine. It produces its rated power of 1 kW at approximately 11 m/s. The Windspire has a variable rpm and rotates at approximately 350 rpm at rated wind speed.

SWIFT Wind Turbine

This is the text version for the SWIFT wind turbine video.

The 10-second video was shot at the National Renewable Energy Laboratory's National Wind Technology Center on November 16, 2010. The video shows the SWIFT 1-kW wind turbine's blades spinning in strong winds. The SWIFT 1 kW is a five-bladed upwind, free yaw wind turbine with a rated power of 1 kW. The SWIFT 1 kW is variable speed but uses its double fins to furl the turbine for high wind protection. It has a rotor diameter of 2 meters, and is installed on a freestanding 13.72 meters monopole tower. In the foreground and to the left, you can see its meteorological tower.

Ventera VT10

This is the text version for the Ventera VT10 video.

The 20-second video was shot at the National Renewable Energy Laboratory's National Wind Technology Center on April 12, 2010. The video shows the Ventera VT10 wind turbine's blades spinning in strong winds. The Ventera VT10 is a three-bladed downwind, free yaw wind turbine with a rated power of 10 kW. The VT10 is variable speed but uses pitching tips to govern rotor speed in high winds. It has a rotor diameter of 22 ft, and is installed on a freestanding 60 ft lattice tower with a 10-ft extension tube.

Viryd Technologies CS8

This is the text version for the Viryd Technologies CS8 video.

The 29-second video was shot at the National Renewable Energy Laboratory's National Wind Technology Center on February 2, 2012. The video shows the Viryd Technologies CS8 wind turbine's blades spinning in strong winds. The CS8 is a three-blade, upwind, free yaw wind turbine with a rated power of 8 kW. The CS8 is a constant speed machine, using stall to govern power during high winds. It has a redundant braking system for protection in case of an overspeed event. The CS8's rotor diameter is 8.5 meters. It is installed on a guyed tilt-up 25-meter lattice tower.